_INSPECTION - C1982056 ‎(27)‎

• Permit No: C1982056
• IBM Index Class Name: INSPECTION
• Doc Name: Inspection Report
• Inspection Date: 11/11/2008
• Email Name: JHB
• Media Type: D
• Archive: No

Ill. COMMENTS -COMPLIANCE
Below are comments on the inspection. The comments include discussion of observations made during
the inspection. Comments also describe any enforcement actions taken during the inspection and the
facts or evidence supporting the enforcement action.
This was a complete inspection conducted by Janet Binns of Colorado Division of Reclamation, Mining
and Safety. Mr. Brian Watterson of Twentymile Coal Company accompanied the inspection. The mine
is an active underground mine. The weather was cool and cloudy with intermittent snow showers. The
mine is wet due to recent precipitation.
Roads: Roads throughout the mine were wet but generally in good condition. Ditches through out the
facilities area are in adequate shape. Ditch E-2 continually needs sediment cleanout and shaping. This
ditch has a relatively flat grade and collects runoff from the active ROM pile. As such,this ditch needs
frequent maintenance. The ditch west of Zero-entry shaft has been cleaned of sediment and has been
shaped to allow for designed flow.
Access roads to Fish Creek Borehole, 6MN, and 18RT are in good condition prior to winter season.
Ditches alongside 18RT access road have been cleaned of sediment and rock check dams have been
reshaped.
Haulroad B at the entrance to the Pond B area continues to collect a pool of water. It appears that some
of this water is draining from the Truck load out loop. Flow onto the pond B access road needs
additional sediment control prior to drainage to Foidel Creek. TCC has installed rock check dams in the
ditch but these have filled with sediment quickly. Directing runoff off Haulroad B would improve the
sediment control in this area.
Support Facilities: The Stoker loading area expansion has been constructed as designed.
The temporary"underflow storage"area in the previously approved location of low quality coal storage
pile continues to dry. TCC will continue to allow this material to dry and then will place this material on
the RDA.
Grading of the south side of Wash Plant II continues to be needed.
TCC will be implementing MR231, drilling of a borehole at the Zero-entry fan and waterline to Area 1
Pit. This new line will help keep the portal area drier and allow an alternative from pumping mine water
at the portal.
Hydrologic Balance: TCC continues to pump Mine water from 1 ORT to Foidel Creek via a 12"HDP.
The discharge point at Foidel Creek is approximately where Foidel Creek flows under Routt County road
No. 33. TCC reported two excursions in effluent discharge at COG-85-0048 outfall 001 in October.
Both WET test and 30-day Iron failed to meet the effluent limits. TCC notified CDPH&E and DRMS as
required. CDPH&E has TCC conducting accelerated WET testing for this discharge. TCC is
investigating treatment options for this location.
Ill. COMMENTS -COMPLIANCE
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